The Commvault network controls incoming connections to a client from clients or client groups by restricting connections to configured ports or blocking them entirely. For each client or client group that cannot open direct connections with a client, you can assign the following connection states:
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RESTRICTED: A connection can be set up, but only on restricted ports (that is, those configured on the Incoming Ports tab of the receiving client).
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BLOCKED: A connection cannot be set up.
 
These sets of rules are used to define the type of network configuration in use between the two hosts. For example, RESTRICTED-RESTRICTED yields a two-way network configuration, but RESTRICTED-BLOCKED yields a one-way network configuration.
Procedure
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From the CommCell Browser, expand Client Computers, right-click the client, and then click Properties.
The Client Computer Properties dialog box appears.
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Click Network.
The Network Properties dialog box appears.
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In the Network Route Configuration dialog box, select the Configure Network Route Settings check box, and then click Advanced.
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Click OK to acknowledge the warning and then continue.
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On the Incoming Connections tab, click Add for every client or client group that cannot open direct connections to this client.
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Click OK.